"The Tachypomp" is a short story by Edward Page Mitchell originally published January 1874 anonymously in The Sun, a New York City daily newspaper.
[3] "The Tachypomp" is an early use of mathematics as the principal premise of a science-fiction story,[4] and it was one of the first to use the word "android", here used to describe a purely mechanical creature.
In 1973, "The Tachypomp" and other stories were reprinted in The Crystal Man: Landmark Science Fiction, edited by Sam Moskowitz.
These include: The term "tachypomp" refers to a fictional device theoretically capable of attaining infinite speed.
If a Tachypomp were constructed, relativistic principles such as length contraction and time dilation would prevent any component of the system from achieving or exceeding the speed of light.